Roller-bearing



C. E. ROBSON.

ROLLER BEAnm. l APPLICATION FILED FEB. 25 1919. 30 F' 5 ZSHEETS-SIIEETI.

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Ingen/La /ge/zoe IOW C. E'. ROBSON.

ROLLER BEARING.

APPLICATION FILED FEB. 25.. 1919.

2 -SHEET 2.

` '1,389,385 l Patented (30,1921.

orari-:DA STATES Parlzlar OFFICE.

'E RoBsoN, or PHILADELPHIA, PENNSYLVANIA.

ROLLER-BEARING.

T all whom it 0071 oem Be it known that 1, CLARENCE E. RoEsoN, a citizen of the United States, residing 1n Philadelphia, Pennsylvania, have invented certain. Improvements in Roller-Bearings D, of which the following is a specication.

'My inventionv `relate'sto certain improvements inroller bearings, particularly those of aV conical type adapted to conical racene object of my invention is to provide means for retaining ythe assembled rollers in position, so that `the raceway can be yremoved without disarrangingthe rollers.

A further object is to provide meansrfor retaining the severalrollers on `one of the rac'eways while the bearing is being assem- Y bled, or when one raceway is being removed.

A still' further object ofthe invention isto locate the retaining meansso as not to interfere with the freedom of the movement of the rollers while in action.

In the accompanying drawings Figure l, is a sectional view through a roller .bear-ing on the line 1 1, Fig. 2, illustrating my invention;

l Fig. 2, is a sectional view on the line 2 2, Fig. 1 ;V

' 3, is adetached sectional` view ofthe lFig. 4, is av detached y perspective view of one of the'rollers;

Fig; 5, is aview illustrating the arrange-l ment; of thev retaining'ring so that it will 'holdl theV rollers to the outer raceway;

Fig. 6, is a'detaohed ksectional view of the ring illustrated in Fig. 5; Q Fig. .7, isa sectional view of a modification on the line 7 7, Fig. 8;

F ig8, Vis a sectional view on the line 8 8,

9 :and`10, are views-v of'amodilica- Y tion in which a bent steel wire is used with the ring-for retaining therollers on the inner raceway; *Y

Figs. 11 and 12, are views of a similar fivirerfo'r'V retaining vthe rollers 1 on r,the outer raceway;

Fig. 13, is a development of the one piece steel wire shown in Figs.'9 and 10;

Fig. 14, lis a development of the bent wire ring with solid rings at each side Welded thereto; and

Fig. 15,.is a'view illustrating a modification lof thev roller.

Referring in the first instance to Figs. l

Specification of LettersPatent. Patented Allg. 30, 1.921. Application led February 25, 1919. Serial No. 279,059.

This construction llimits thev longitudinal movement of the rollers.

6 is the outer raceway which may be Y, mounted in the hub of a wheel, or other device, when the outer raceway rotates'on a iXed bearing, or when the inner raceway rotates the outer raceway may beheld in any suitable bearing. Y The raceway 6 has a conical bearing surface 7.

. It will be noted that the rollers are conical so as to coincide with the two conical bearing surfaces`2'and 7. It isqvery diiiicult to assemble the loose rollers inv the space between the raceways and when it is desired to'remove the rollers theyf are liable to fall out of position'V the moment the raceways are separated; I overcome' this difficulty as follows, a groove 8 is formed in each roller, preferably at the-center, and of a width to receive freelya solid ring 9 and is preferably conical', as shown in Fig. 3, to correspondlto the surface ofthe base of the groove 8 of the rollers 3, but the base of the groove-in the rollers may be made conical as shown in Fig. 15 and a ring 9d, made as shown, may holdthe rollers in place.

In assembling the rollers on the inner raceway, the ring is placed in position around the' raceway -and lthe rollers, one after another, are placed in position between the ring and the raceway with the rings seated in their grooves so as to maintain them in position on the raceway without interference with their accommodating themselves tothe bearing surfaces. `When the last roller isv placed inv position on the raceway a little force is required .to push it past the ring so as to allow it to assume the position illustratedin Fig. 1,`after which the assembled rollers are free to rotate on the that the rollers are between the ring and the outer raceway 6a, and the assembling of the rollers is accomplished in the same manner as in the construction illustrated in Fig. 1, viz., the ring is located within the raceway 6a and one roller after another is placed in position, while the last roller is forced into position. I preferably use a split retaining ring 10y sprung into a groove in the outer raceway, as shown in Fig. 5, so as to serve as a retaining f iange for limiting the longitudinal movement of the rollers 3a in the raceway 6a and keeping the assembled rollers in place on the raceway. This removable retaining flange 10, it will be seen, is located at the end of the raceway whence the'v rollers could otherwise be removed e'. e., as shown, at the large end of the raceway. It will be seen that the raceway, the rollers, and the retaining rings constitute a unitary assembly which may be separated from the rest of the bearing without falling apart. y Y

In Figs. 7 and 8, I have illustrated another modification inV which two solid retaining rings 9b and 9C of generally truncated cone forms are used, the rings being -bent so that one ring passes under alternate rollers and over the other rollers, while the other ring passes over alternate rollers and under the other rollers, as in Fig. 8. The wavy rings occupy the space formed by the grooves 8@ in the rollersV 3C and are so interlaced with the rollers and engaged in their grooves as to retain them properly assembled for mounting on the raceways. Thus the assembled rollers with the two retaining rings 9b, 9c form a unitary assembly which can be separated from the other parts of the bearings without falling apart. The rollers are placed one after another inthe space formed by the two rings and the last roller is forced into position and when the several rollers are in position, the two rings retain them in cylindrical form so that they can be moved as a unit from either of the raceways, or can be readily Vlocated in position between the raceways.

In Figs. 9 and 10, I have shown another modification in which the rollers are not grooved, and the' rollers have a full bearing on the two raceways. In this instance, I use a wire 9, which'is bent as shown in Fig 13, .so as to form transverse bars 11 connected together by end bars 12 alternately arranged, so that when the rollers are assembled the bars 11 ,are located between the several rollers and slightly beyond the center m through the rollers. This construction holds t-he rollers in position on the inner raceway 1b when the outer raceway 6b is removed.

In Figs. 11 and 12, I have shown the same construction of retaining ring, only the ring is somewhat smaller and the bars 11 fit between the rollers within the center line a3', Fig. 12, so that when the parts are detached the ring holds the rollers in position on the raceway 6C, whilethe raceway 1c can be removed.

In Fig. 13, I have shown the wire bent to form cross bars 11 connected alternately at each end by bars 12, while in Fig. 14 I `have shown two rings 13, one at each side, connected to the bars 12 by welding so as to make the construction more rigid.

The main feature of the invention is to provide a ring for holding the rollers onto either one of the raceways vwhen the two raceways are separated.

' Another important feature of the invention is the location ofthe ring in grooves formed in the rollers, the grooves being at any 'point throughout the length of the roller, so arranged that the grooves of the several rollers will be in alinement.

, I claim v 1. A roller bearing assembly comprising a conical raceway; a series of conical rollers arranged substantially close together on said raceway and annularly grooved between their ends; thin, narrow annular retaining means adapted to seat in the grooves of the rollers and mantain them in position on the vraceway without interference with their accommodating themselves to the bearing surfaces; and a split retaining ring for keeping the assembled rollers in place removably seated in a groove inthe end of said raceway whence the rollerscould otherwise be removed.

2. A roller bearing assembly comprising a series of conical rollers annular-ly grooved between their ends; and a pair of thin, narrow wavy retaining rings adapted to be .engaged in said grooves of said rollers and interlaced with them to retain them properly assembled for mounting on raceways.

In witness whereof I aflix my signature.

CLARENCE nnoBso-ia.V 

